CN213026254U - Battery pack assembly, power battery module and vehicle - Google Patents
Battery pack assembly, power battery module and vehicle Download PDFInfo
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- CN213026254U CN213026254U CN202021985517.8U CN202021985517U CN213026254U CN 213026254 U CN213026254 U CN 213026254U CN 202021985517 U CN202021985517 U CN 202021985517U CN 213026254 U CN213026254 U CN 213026254U
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- battery
- battery pack
- semiconductor refrigeration
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- pack assembly
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
Abstract
The utility model provides a battery pack assembly, a power battery module and a vehicle, wherein the battery pack assembly comprises a battery pack body and a plurality of semiconductor refrigerating sheets, the battery pack body comprises a plurality of electric cores arranged in an array, and the side surfaces of the plurality of electric cores are fixedly connected; the plurality of semiconductor refrigerating pieces are arranged in an array mode and fixed at least one end of the battery core; the projection of each semiconductor refrigeration piece is superposed with the projection of the end face of at least one battery cell, wherein the semiconductor refrigeration pieces are used for heating or cooling the battery cells. The utility model discloses battery package assembly can improve radiating efficiency, and does not have the hysteresis quality when each department dispels the heat, therefore more even. And the semiconductor refrigeration piece located at the end part of the battery core can adjust the temperature of the local area of the battery pack in a targeted manner, so that the temperature adjustment is more accurate, and the working safety and reliability of the battery pack can be improved.
Description
Technical Field
The utility model belongs to battery temperature control field especially relates to a battery package assembly, power battery module and vehicle.
Background
Along with the enhancement of environmental awareness and the development and progress of new energy technology of people, the research, development and use of the electric new energy automobile are more and more emphasized.
As the power of the electric new energy automobile, the working performance of the battery pack is of great importance, and ensuring that the working temperature of the battery pack is within a reasonable temperature range is an important measure for ensuring the working performance of the battery pack.
At present, the heat dissipation when battery package is overheated is comparatively paid attention to usually in the common temperature control mode, through laying tortuous reciprocating circulation pipeline in the battery package, prepares microthermal coolant liquid by the air conditioner, uses the circulating pump to promote the mode that the coolant liquid circulates in the pipeline to carry out liquid cooling circulation heat dissipation.
However, the inventor finds that, in the actual application process, the zigzag reciprocating circulation pipeline causes large flow resistance of liquid and low cooling efficiency, when cooling liquid flows through different areas first and then, different areas of the battery cell in the battery pack cannot realize simultaneous heat dissipation, uneven heat dissipation of different areas causes large temperature difference, and a certain time is consumed in the preparation process of the cooling liquid, which also causes low heat dissipation efficiency.
SUMMERY OF THE UTILITY MODEL
In view of this, the embodiment of the utility model provides a battery package assembly, power battery module and vehicle to solve among the current battery package low and inhomogeneous problem of radiating efficiency.
The embodiment of the utility model provides a first aspect of the battery pack assembly, battery pack assembly includes battery pack body and a plurality of semiconductor refrigeration piece, battery pack body includes a plurality of electric cores that the array set up, and the side of a plurality of electric cores is adjoined fixedly;
the semiconductor refrigeration pieces are arranged in an array mode and fixed at least one end of the battery core;
the projection of each semiconductor refrigeration piece is superposed with the projection of the end face of at least one battery cell, wherein the semiconductor refrigeration pieces are used for heating or cooling the battery cells.
Optionally, the battery pack assembly further comprises a battery pack housing;
the battery pack shell is provided with a battery compartment surrounded by a bottom shell and side frames, and the battery core is arranged in the battery compartment;
the semiconductor refrigeration piece is fixed at one end, far away from the bottom shell, of the battery cell.
Optionally, the semiconductor refrigeration piece is bonded and fixed to one end, away from the bottom shell, of the battery cell through a heat conduction structure adhesive.
Optionally, the semiconductor refrigeration piece is fixed to one end, far away from the bottom shell, of the battery cell through a clamping structure or a screw.
Optionally, a heat conducting medium is arranged between the electric core and the semiconductor refrigeration piece, and the heat conducting medium seals a gap between the electric core and the semiconductor refrigeration piece.
Optionally, the battery pack assembly further comprises a tray floor;
the tray bottom plate is arranged between the battery cell and the semiconductor refrigeration piece.
Optionally, one side of the tray bottom plate is bonded and fixed to one end, away from the bottom shell, of the battery cell through heat conduction structure glue, and the other side of the tray bottom plate is bonded and fixed to the semiconductor refrigeration piece through the heat conduction structure glue.
In a second aspect of the embodiments of the present invention, a power battery module is provided, which includes a battery management system and a battery pack assembly according to the first aspect of the embodiments of the present invention;
the battery management system is electrically connected with each semiconductor refrigeration piece and is used for controlling at least one of the semiconductor refrigeration pieces to be powered on or powered off.
Optionally, the power battery module further comprises a temperature sensor;
the temperature sensor is electrically connected with the battery management system, the temperature sensor is thermally coupled to the battery core, and the temperature sensor is used for acquiring the temperature of the battery core.
Optionally, the temperature sensor is integrally disposed on a surface of the semiconductor chilling plate, and the temperature sensor faces the battery cell.
The utility model discloses the third aspect of embodiment provides a vehicle, the vehicle includes the utility model provides a first aspect the battery package assembly perhaps the utility model provides a second aspect the power battery module.
The embodiment of the utility model provides a, through providing a battery package assembly, set up a plurality of semiconductor refrigeration pieces at the tip of the electric core of battery package body, along the line direction of the terminal surface of electric core, the projection of every semiconductor refrigeration piece and the projection coincidence of at least one electric core to utilize the difference in temperature that produces after the semiconductor refrigeration piece circular telegram, can be used for heating or cooling to electric core, can improve radiating efficiency, and there is not the hysteresis quality when each is dispelled the heat, therefore more even. And the semiconductor refrigeration piece located at the end part of the battery core can adjust the temperature of the local area of the battery pack in a targeted manner, so that the temperature adjustment is more accurate, and the working safety and reliability of the battery pack can be improved.
The above description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood, the present invention may be implemented according to the content of the description, and in order to make the above and other objects, features, and advantages of the present invention more obvious and understandable, the following detailed description of the present invention is given.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
fig. 1 is a schematic diagram of a battery pack assembly according to an embodiment of the present invention;
fig. 2 is a schematic diagram of another battery pack assembly according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of the positions of the tray bottom plate and the heat-conducting structure adhesive according to the embodiment of the present invention;
fig. 4 is a schematic position diagram of the semiconductor refrigeration sheet and the heat-conducting structural adhesive in the embodiment of the present invention;
fig. 5 is a schematic diagram of the tray bottom plate bonded to the battery cell in the embodiment of the present invention;
fig. 6 is a schematic view of the embodiment of the present invention after the semiconductor refrigeration sheet is bonded to the tray bottom plate;
fig. 7 is a side view of a battery pack assembly in an embodiment of the invention.
Description of reference numerals:
the battery pack comprises a battery pack body-10, a semiconductor refrigerating sheet-11, a battery pack shell-12, a tray bottom plate-13 and a temperature sensor-14.
Detailed Description
Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the invention are shown in the drawings, it should be understood that the invention can be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
Referring to fig. 1, an embodiment of the present invention provides a battery pack assembly, where the battery pack assembly includes a battery pack body 10 and a plurality of semiconductor refrigeration sheets 11, the battery pack body 10 includes a plurality of battery cells arranged in an array, and side surfaces of the plurality of battery cells are adjacent and fixed;
the semiconductor refrigeration pieces 11 are arranged in an array, and the semiconductor refrigeration pieces 11 are fixed at least one end of the battery core;
the projection of each semiconductor refrigeration piece 11 coincides with the projection of the end face of at least one battery cell, wherein the semiconductor refrigeration pieces 11 are used for heating or cooling the battery cells.
Particularly, as shown in fig. 1, an embodiment of the present invention provides a battery pack assembly, which includes a battery pack body 10 and a semiconductor cooling plate 11 for heating or cooling the battery pack body 10. The battery pack body 10 includes a battery cell array formed by splicing a plurality of battery cells in series and parallel, for example, 18650 battery cells or lithium ion soft package battery cell array can be used to splice and manufacture the battery pack body, the side surfaces of the battery cells are closely fixed together densely, and the upper end surface and the lower end surface are exposed. The semiconductor refrigerating plate 11 is composed of two ceramic plates, between which N-type and P-type semiconductor materials are arranged, and the semiconductor elements are connected in series on the circuit. In terms of working principle, the semiconductor refrigerating sheet 11 is a heat transfer tool, when a current passes through a thermocouple pair formed by connecting an N-type semiconductor material and a P-type semiconductor material, heat transfer can be generated between two ends, and the heat can be transferred from one end to the other end, so that temperature difference is generated to form a cold and hot end. It is understood that the semiconductor chilling plates 11 are relative concepts, and after the flow direction of the current is changed, the cold and hot ends of the semiconductor chilling plates 11 are exchanged and can be used for heating. The principle of the semiconductor chilling plate 11 will not be described in detail herein.
The plurality of semiconductor refrigeration pieces 11 are arranged in an array mode to form a latticed distribution mode, and when the semiconductor refrigeration pieces 11 are arranged in the array mode, the semiconductor refrigeration pieces 11 are connected to form an integral sheet structure conveniently, and the semiconductor refrigeration pieces 11 can be tiled on the same plane. The plurality of scattered semiconductor refrigeration pieces 11 are arranged in a row array to form a whole, all the semiconductor refrigeration pieces 11 are fixed at least one end of the electric core, for example, the semiconductor refrigeration pieces 11 are fixed above or below the electric core, and of course, under the condition of having a heat dissipation space, the semiconductor refrigeration pieces 11 can be simultaneously fixed above and below the electric core. For example, when there is no shielding above or below the battery cell, the semiconductor chilling plate 11 may be fixed. It should be noted that, when the semiconductor refrigeration piece 11 is fixed in installation, the cold end side is close to the electric core, and the hot end side is far away from the electric core, so that the cold end of the semiconductor refrigeration piece 11 absorbs heat of the electric core and can be transferred to the hot end. Each semiconductor chilling plate 11 can be independently controlled and is not limited by other semiconductor chilling plates 11.
When the area of the semiconductor chilling plate 11 is small, the projection of the semiconductor chilling plate 11 can be overlapped with the projection of the end face of one battery cell. It should be noted that the end surfaces of the battery cell are the upper and lower end surfaces of the battery cell adjacent to the side surfaces thereof. When the area of the semiconductor refrigeration piece 11 is large, the projection of the semiconductor refrigeration piece 11 may coincide with the projection of the end faces of two or more battery cells. That is to say, for each semiconductor refrigeration piece 11, at least one battery cell can be covered, that is to say, in terms of area, the semiconductor refrigeration piece 11 can accurately control the temperature of a single battery cell when being most accurate, and once again, the temperature of two or more battery cells in a local area can be controlled. After the semiconductor refrigeration piece 11 is fixed according to predetermined cold and hot ends, only need transform the current direction, can realize heating or cooling to the temperature of maintaining electric core is in reasonable operating temperature.
The embodiment of the utility model provides a, through providing a battery package assembly, set up a plurality of semiconductor refrigeration pieces at the tip of the electric core of battery package body, the projection of every semiconductor refrigeration piece coincides with the projection of the terminal surface of at least one electric core to utilize the difference in temperature that produces after the semiconductor refrigeration piece circular telegram, can be used to heat or cool down electric core, can improve radiating efficiency, and do not have the hysteresis quality when each is dispelled the heat, therefore more even. And the semiconductor refrigeration piece located at the end part of the battery core can adjust the temperature of the local area of the battery pack in a targeted manner, so that the temperature adjustment is more accurate, and the working safety and reliability of the battery pack can be improved.
Optionally, referring to fig. 1, the battery pack assembly further comprises a battery pack housing 12;
the battery pack shell 12 is provided with a battery compartment surrounded by a bottom shell and side frames, and the battery core is arranged in the battery compartment;
the semiconductor refrigeration piece 11 is fixed at one end, far away from the bottom shell, of the battery cell.
Specifically, as shown in fig. 1, in one embodiment, the battery cells may be mounted in a battery pack case 12 made of metal after being electrically connected, and the battery pack case 12 may be a stamped part having a bottom case and side frames and formed by stamping with a die. The bottom shell and the side frames are enclosed to form a battery compartment for accommodating the battery cell, the battery cell can be fixed in the battery compartment through the metal frame, one end of the battery cell is pressed on the bottom shell, and the other end of the battery cell is exposed out of the opening above the battery compartment. In the fixing mode of the battery cell, the bottom of the battery cell is in contact with the bottom shell, so that the heat dissipation space is compact. Therefore, the semiconductor refrigeration piece 11 can be fixed at one end of the battery cell far away from the bottom shell, namely, the semiconductor refrigeration piece 11 is fixed above the opening of the battery compartment, so that the cold end of the semiconductor refrigeration piece 11 faces the battery cell, and therefore, a sufficient heat dissipation space is arranged on one side of the hot end of the semiconductor refrigeration piece 11.
Optionally, the semiconductor refrigeration piece 11 is bonded and fixed to one end, away from the bottom case, of the battery cell through a heat conduction structure adhesive.
Specifically, in an embodiment, the semiconductor cooling plate 11 may be fixed to an end of the battery cell away from the bottom case by means of adhesion, and the adhesive used may be a heat-conducting structural adhesive, for example, a synthetic epoxy resin for filling metal or inorganic material. Through using heat conduction structure to glue between semiconductor refrigeration piece 11 and electric core, on the one hand, utilize the effect of its bonding to realize the fixed connection of semiconductor refrigeration piece 11 and electric core, on the other hand, can also glue good heat conductivity with the help of heat conduction structure and realize thermal transmission.
Optionally, the semiconductor refrigeration piece 11 is fixed to one end, far away from the bottom case, of the battery cell through a clamping structure or a screw.
Specifically, in an embodiment, in order to fix the semiconductor refrigeration sheet 11, a buckle may be designed at an edge of the semiconductor refrigeration sheet 11, a clamping groove is formed in a side frame of the battery pack case 12, and the semiconductor refrigeration sheet 11 is fixed by the clamping of the buckle and the clamping groove. In addition, the semiconductor cooling plate 11 may be screwed and fixed to the side frame of the battery pack case 12 by using screws. Therefore, the clamping structure or the screw connection is beneficial to subsequent maintenance of the semiconductor refrigeration piece 11, and the semiconductor refrigeration piece is convenient to detach and replace.
Optionally, a heat conducting medium is arranged between the battery cell and the semiconductor refrigeration piece 11, and the heat conducting medium seals a gap between the battery cell and the semiconductor refrigeration piece 11.
Specifically, in an embodiment, since the end of the battery cell is not a flat plane, in order to avoid the loss of heat exchange between the battery cell and the semiconductor refrigeration sheet 11, when the semiconductor refrigeration sheet 11 is fixed by using a clamping structure or a screw, a soft heat-conducting medium such as heat-conducting silica gel may be filled between the battery cell and the semiconductor refrigeration sheet 11, and the gap is sealed and the heat-conducting effect is achieved by using the characteristics of easy deformation and heat conduction of the heat-conducting medium.
Optionally, referring to fig. 2, the battery pack assembly further comprises a tray bottom plate 13;
the tray bottom plate 13 is arranged between the battery cell and the semiconductor refrigeration piece 11.
Specifically, as shown in fig. 2, in an embodiment, in order to reliably mount and fix the semiconductor cooling fins 11, a flat tray bottom plate 13 may be further disposed between the battery cell and the semiconductor cooling fins 11, and two surfaces of the tray bottom plate 13 face the battery cell and the semiconductor cooling fins 11. The tray bottom plate 13 and the battery cell can be bonded and fixed by using a heat conduction structure adhesive, and the semiconductor refrigeration sheet 11 and the tray bottom plate 13 can be bonded and fixed by using a heat conduction structure adhesive. In addition, as shown in fig. 3, an illustration is given that the heat conducting structural adhesive is arranged on the surface of the battery cell of the battery pack, and the tray bottom plate 13 is located above the heat conducting structural adhesive. As shown in fig. 4, an illustration is given after the tray bottom plate 13 and the battery core are fixed by the heat-conducting structural adhesive, and the heat-conducting structural adhesive may be arranged between the upper side of the tray bottom plate 13 and the semiconductor refrigeration sheet 11 for adhering and fixing the semiconductor refrigeration sheet 11. As shown in fig. 5, an illustration is given that the heat-conducting structural adhesive is arranged on the upper surface of the tray bottom plate 13, and the semiconductor refrigeration sheet 11 is located above the heat-conducting structural adhesive. As shown in fig. 6, a schematic diagram of the semiconductor cooling plate 11 bonded to the tray bottom plate 13 is shown, and fig. 7 is a side view of the battery pack assembly.
Therefore, a relatively flat bonding and fixing surface can be provided through the flat tray bottom plate 13, the mounting reliability of the semiconductor refrigeration sheet 11 is improved, and when the heat conduction structure adhesive is used for bonding, the heat loss can be reduced.
The embodiment of the utility model also provides a power battery module, which comprises a battery management system and the battery pack assembly of any one of the previous embodiments of the utility model;
the battery management system is electrically connected with each semiconductor refrigeration piece 11 and is used for controlling at least one of the semiconductor refrigeration pieces 11 to be powered on or powered off.
Specifically, in a power Battery System, can be in the same place Battery package assembly and Battery Management System combination, Battery Management System (BMS) can realize the degree through the temperature sensor who is connected with it and to the collection of the temperature of monomer electricity core, through the temperature signal analysis processing to gathering, judge that the temperature of that electricity core is unusual, thereby when the temperature is higher, control semiconductor refrigeration piece 11 circular telegram, dispel the heat or heat to the electricity core, when electric core temperature changes to preset operating temperature, Battery Management System control semiconductor refrigeration piece 11 outage, stop dispelling the heat or heating. When the temperatures of the plurality of battery cells or the battery cells in a certain area are abnormal, the battery management system may control the plurality of corresponding semiconductor cooling fins 11 to be powered on to perform temperature control until the power failure ends the control.
Therefore, the embodiment of the utility model provides a power battery module can realize carrying out more accurate temperature regulation to local electric core in the battery module, and temperature regulation simple structure, helps reducing the volume of battery module or vacating the space for electric core with the dilatation.
Optionally, referring to fig. 2, the power battery module further includes a temperature sensor 14;
the temperature sensor 14 is electrically connected to the battery management system, the temperature sensor 14 is thermally coupled to the battery cell, and the temperature sensor is configured to acquire a temperature of the battery cell.
Specifically, as shown in fig. 2, in one embodiment, the temperature of the battery cell may be acquired by the temperature sensor 14, the temperature sensor 14 such as a thermistor may be disposed in the battery compartment of the battery pack case 12, and the probe of the temperature sensor 14 may be inserted into the thermal field of the battery cell or may be closely attached to the battery cell. Thus, the heat dissipated by operation of the cell may be transferred to the temperature sensor 14 via the thermal coupling. The temperature sensor 14 may communicate temperature data to a battery management system electrically connected thereto. According to the real-time monitoring result of the temperature sensor 14, which battery cell or which regional battery cell needs to be subjected to temperature control can be known, and the temperature control is more accurate and intelligent.
Optionally, referring to fig. 2, the temperature sensor 14 is integrally disposed on a surface of the semiconductor refrigeration unit 11, and the temperature sensor 14 faces the battery cell.
Specifically, as shown in fig. 2, in one embodiment, the temperature sensor 14 provided in the foregoing may be integrated with the semiconductor refrigerator 11, the temperature sensor 14 may be packaged on the surface of the semiconductor refrigerator 11 when the semiconductor refrigerator 11 is packaged, and when the semiconductor refrigerator 11 is mounted and fixed, the surface provided with the semiconductor refrigerator 11 may be directed toward the battery cell, so that it is not necessary to separately design a mounting structure for the temperature sensor 14, which may save a mounting space and simplify the mounting structure. It can be understood that when the semiconductor chilling plate 11 is integrated with the temperature sensor 14, a through hole may be formed in the tray bottom plate 13 at a position corresponding to the temperature sensor 14, so as to ensure that the probe of the temperature sensor 14 can pass through the through hole to contact the battery cell. The embodiment of the utility model provides a still provide a vehicle, the vehicle includes any kind of battery package assembly or aforementioned power battery module of aforementioned embodiment.
No matter in passenger car or commercial car, to the new forms of energy vehicle, can use the battery package assembly or the power battery module that any kind of aforesaid embodiment provided to, help promoting the working property of electric core, can improve power battery's operational safety and reliability, improve the utilization ratio of electric energy, improve the duration and the driving safety nature of vehicle.
The embodiments in the present specification are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
As is readily imaginable to the person skilled in the art: any combination of the above embodiments is possible, and thus any combination of the above embodiments is an embodiment of the present invention, but the present disclosure is not necessarily detailed herein due to space limitations.
In the description provided herein, numerous specific details are set forth. It is understood, however, that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.
Similarly, it should be appreciated that in the foregoing description of exemplary embodiments of the invention, various features of the invention are sometimes grouped together in a single embodiment, figure, or description thereof for the purpose of streamlining the disclosure and aiding in the understanding of one or more of the various inventive aspects. However, the disclosed method should not be interpreted as reflecting an intention that: rather, the invention as claimed requires more features than are expressly recited in each claim. Rather, as the following claims reflect, inventive aspects lie in less than all features of a single foregoing disclosed embodiment. Thus, the claims following the detailed description are hereby expressly incorporated into this detailed description, with each claim standing on its own as a separate embodiment of this invention.
Those skilled in the art will appreciate that the modules in the device in an embodiment may be adaptively changed and disposed in one or more devices different from the embodiment. The modules or units or components of the embodiments may be combined into one module or unit or component, and furthermore they may be divided into a plurality of sub-modules or sub-units or sub-components. All of the features disclosed in this specification (including any accompanying claims, abstract and drawings), and all of the processes or elements of any method or apparatus so disclosed, may be combined in any combination, except combinations where at least some of such features and/or processes or elements are mutually exclusive. Each feature disclosed in this specification (including any accompanying claims, abstract and drawings) may be replaced by alternative features serving the same, equivalent or similar purpose, unless expressly stated otherwise.
Furthermore, those skilled in the art will appreciate that while some embodiments described herein include some features included in other embodiments, rather than other features, combinations of features of different embodiments are meant to be within the scope of the invention and form different embodiments. For example, in the claims, any of the claimed embodiments may be used in any combination.
It should be noted that the above-mentioned embodiments illustrate rather than limit the invention, and that those skilled in the art will be able to design alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of elements or steps not listed in a claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The invention can be implemented by means of hardware comprising several distinct elements, and by means of a suitably programmed computer. In the unit claims enumerating several means, several of these means may be embodied by one and the same item of hardware. The usage of the words first, second and third, etcetera do not indicate any ordering. These words may be interpreted as names.
Claims (11)
1. A battery pack assembly is characterized by comprising a battery pack body and a plurality of semiconductor refrigerating pieces, wherein the battery pack body comprises a plurality of battery cores arranged in an array, and the side surfaces of the plurality of battery cores are abutted and fixed;
the semiconductor refrigeration pieces are arranged in an array mode and fixed at least one end of the battery core;
the projection of each semiconductor refrigeration piece is superposed with the projection of the end face of at least one battery cell, wherein the semiconductor refrigeration pieces are used for heating or cooling the battery cells.
2. The battery pack assembly of claim 1, further comprising a battery pack housing;
the battery pack shell is provided with a battery compartment surrounded by a bottom shell and side frames, and the battery core is arranged in the battery compartment;
the semiconductor refrigeration piece is fixed at one end, far away from the bottom shell, of the battery cell.
3. The battery pack assembly of claim 2, wherein the semiconductor chilling plate is bonded and fixed to an end of the battery cell away from the bottom case by a heat-conducting structural adhesive.
4. The battery pack assembly of claim 2, wherein the semiconductor chilling plate is fixed to the end of the battery cell away from the bottom case by a clamping structure or a screw.
5. The battery pack assembly of claim 4,
and a heat-conducting medium is arranged between the electric core and the semiconductor refrigerating sheet and seals a gap between the electric core and the semiconductor refrigerating sheet.
6. The battery pack assembly of claim 2, further comprising a tray floor;
the tray bottom plate is arranged between the battery cell and the semiconductor refrigeration piece.
7. The battery pack assembly of claim 6, wherein one side of the tray bottom plate is fixed to one end of the battery core, which is far away from the bottom case, through heat-conducting structural adhesive, and the other side of the tray bottom plate is fixed to the semiconductor refrigeration sheet through heat-conducting structural adhesive.
8. A power battery module, characterized in that the power battery module comprises a battery management system and a battery pack assembly as claimed in any one of claims 1 to 7;
the battery management system is electrically connected with each semiconductor refrigeration piece and is used for controlling at least one of the semiconductor refrigeration pieces to be powered on or powered off.
9. The power battery module as claimed in claim 8, further comprising a temperature sensor;
the temperature sensor is electrically connected with the battery management system, the temperature sensor is thermally coupled to the battery core, and the temperature sensor is used for acquiring the temperature of the battery core.
10. The power battery module of claim 9, wherein the temperature sensor is integrally disposed on a surface of the semiconductor cooling plate, and the temperature sensor faces the battery core.
11. A vehicle, characterized in that the vehicle comprises the battery pack assembly of any one of claims 1 to 7 or the power battery module of any one of claims 8 to 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021985517.8U CN213026254U (en) | 2020-09-11 | 2020-09-11 | Battery pack assembly, power battery module and vehicle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021985517.8U CN213026254U (en) | 2020-09-11 | 2020-09-11 | Battery pack assembly, power battery module and vehicle |
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| CN213026254U true CN213026254U (en) | 2021-04-20 |
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| CN202021985517.8U Active CN213026254U (en) | 2020-09-11 | 2020-09-11 | Battery pack assembly, power battery module and vehicle |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113978906A (en) * | 2021-12-03 | 2022-01-28 | 远景动力技术(江苏)有限公司 | Battery cell tray |
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2020
- 2020-09-11 CN CN202021985517.8U patent/CN213026254U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113978906A (en) * | 2021-12-03 | 2022-01-28 | 远景动力技术(江苏)有限公司 | Battery cell tray |
| CN113978906B (en) * | 2021-12-03 | 2023-09-01 | 远景动力技术(江苏)有限公司 | Battery cell tray |
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